With the reemergence of Dr. Light, the old Titans reluctantly return to Titans Tower to strategize against their old enemy. But the secrets of the Titans' past threaten to tear apart this newly formed team from within. While the old Titans question Dick's acceptance of Rose Wilson into their midst, the new Titans start to wonder about the unspoken tragedy that disbanded the group years before. Meanwhile, an old friend from Kory's home planet of Tamaran comes to Earth with an urgent mission.
Dick Grayson and Rachel Roth, a special young girl possessed by a strange darkness, get embroiled in a conspiracy that could bring Hell on Earth. Joining them along the way are the hot-headed Starfire and loveable Beast Boy. Together they become a surrogate family and team of heroes.